Would this work???
Thread Starter
500 Watt CAFz'r
Joined: Oct 2002
Posts: 832
I'm making a new slot port for my box. It's going to replace the 4 4"x13" ports in the back of the box and tune to 44Hz.
This is good for comps but not for street! Now, I'd build a removable port to tune it lower, but it would cut the port area down too low for my 18.
Here's the possibility!
Box = 7.9³ @ 44Hz with 15"x5"x5.75" port.
If I use my old removable PVC ports(located in a different part of the box) would it tune lower?
They are two 4"x13" PVC pipes. I could use both, or just one.
How would i find the overall tunning?? [img]graemlins/dunno.gif[/img]
If anyone can make sense of what I just posted, ill give you a cookie [img]graemlins/thumb.gif[/img]
This is good for comps but not for street! Now, I'd build a removable port to tune it lower, but it would cut the port area down too low for my 18.
Here's the possibility!
Box = 7.9³ @ 44Hz with 15"x5"x5.75" port.
If I use my old removable PVC ports(located in a different part of the box) would it tune lower?
They are two 4"x13" PVC pipes. I could use both, or just one.
How would i find the overall tunning?? [img]graemlins/dunno.gif[/img]
If anyone can make sense of what I just posted, ill give you a cookie [img]graemlins/thumb.gif[/img]
Guest
Posts: n/a
In 7.9cuft, a pair of 4x13" ports tunes to 23hz or so. Good for attracting whales but not much else.. Using only one of those would be around 16hz. Might as well seal it [img]graemlins/freak.gif[/img]
Anyhoo I would make a plate that you can screw over the slot vent and have 3 4" diameter ports 11" long for a nice 30-ish Hz tune.
Anyhoo I would make a plate that you can screw over the slot vent and have 3 4" diameter ports 11" long for a nice 30-ish Hz tune.
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